Hairbrush



FIG. 1 is a perspective view of an embodiment of a new design for a hairbrush according to the present invention;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is an opposite side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan thereof. 

CLAIM The ornamental design for a hairbrush, as shown and described. 